
Blood Mefist
Level 8 DARK/Fiend Synchro Effect
2800 ATK / 1300 DEF
1 Tuner + 1 or more non-Tuner monsters
Once per turn, during your opponent's Standby Phase: You can inflict 300 damage to your opponent for each card your opponent controls. Each time your opponent Sets a Spell or Trap Card(s): Inflict 300 damage to your opponent.
Rulings – Yugipedia
Printings:
Yu-Gi-Oh! Championship Series 2011 Prize Card: YCSW-EN004 (Super Rare) - 2011-08-07
Yu-Gi-Oh! Championship Series 2011 Prize Card: YCSW-EN004 (Ultra Rare) - 2011-08-07
Prices:
Cardmarket:
20.34 €TCGplayer:
$ 1800.00